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  1. Zed 71

    Turbo build

    Sweet! One of the very few engine build threads that will actually get done. :mexsmoke: Keep us posted on the progress.
  2. Zed 71

    Need a "Step by Step" Guide to Upgrade My Kon

    Bobby look up Magnuson Act regarding mods and warranty. Is $5k your budget? Still not clear how much you want to spend. Budget performance: CAI (any enclosed type) and BB tune (in person w/ Autocal the best). Add exhaust for sound. Want more, need to know how much you want to spend...
  3. Zed 71

    Cats Maybe?

    Scott what mods do you have and which brand/type of gas do you use? All maintenance done and how many miles?
  4. Zed 71

    Need a "Step by Step" Guide to Upgrade My Kon

    So many threads like this and your "finish line" is very vague. How much do you want to spend, what are your expectations, engine/tranny specs, do you have a 2WD/4WD/AWD, which components are you willing to modify, etc...
  5. Zed 71

    Level kit question for the guy who isn't adding bigger tires...

    IMO a level kit is a level kit especially when the truck is not taken off-road. Just get the one that fits your height requirements and budget. Stay away from spacers > 2.5 inches in lift that do not address differential and the severe changes in suspension geometry. My mileage dropped...
  6. Zed 71

    Cats Maybe?

    At startup, IMO this is a normal condition. From my understanding, the engine is running a little rich at startup and it takes a few moments for the cats to warm up for max efficiency.
  7. Zed 71

    (Pics) Black 07 z71, XD hoss rims

    I have had the Nitto Trail Grapplers on for ~15k and they are great. -Noise is in between AT and traditional MT tires. -Awesome traction off-road and on-road. Typical of MT type tires, pay attention during icy conditions. No issues in heavy rain or snow. -Wearing well and I should be able...
  8. Zed 71

    Wheel spacers?

    +1 to Dirk's and Cliff's comments. Make sure you do not buy the cast aluminum spacers, only the billet type. Many off-road racers use spacers.
  9. Zed 71

    BDS or Rancho 4inch lift kit?

    IMO the BDS with upgraded Fox shocks (2.5s at ;east) would be better, that is assuming you are also upgrading to the Fox coil overs at the front (not sure if that is possible with this kit though). I have not seen any reviews for BDS on NNBS Tahoes. I know the Rancho increases the front...
  10. Zed 71

    (Pics) Black 07 z71, XD hoss rims

    Looks good. Specs on level kit, rims, and tires? Getting any rock chips on the body without the side steps?
  11. Zed 71

    Have developed a rough idle. Cause/Fix?

    He cleaned the MAF sensor.
  12. Zed 71

    Have developed a rough idle. Cause/Fix?

    Good to hear that it helped. Wonder if the aftermarket CAI was not providing enough filtration.
  13. Zed 71

    Tranny Oil Replacement....what a pain - moved from OBS section

    You guys probably know this, just dropping the pan or even using the cooler method only changes ~1/3 of the fluid. If a proper flush is never completed, deposits will accumulate on the inner part of the converter. Those deposits may then fall off and block the numerous internal passages which...
  14. Zed 71

    New Rough Country 3.5" Suspension Lift

    That kit looks pretty good because it drops the diff. However, IMO contact the vendor regarding the lower suspension parts. I cannot tell what the travel dynamics/range is like. Keep in mind extended range travel rear shocks would be recommended. Also not sure how the front OEM struts are...
  15. Zed 71

    Anyone heard of Supreme Suspension 3.5" level kit?

    ^+1. Anything higher than 2.5" for a level kit, a proper lift is required. That kit would require a front diff drop, longer extending struts and shocks (cannot use OEM), and aftermarket upper A-arms at the very least to minimize longterm damage.
  16. Zed 71

    Pinging noise... I think

    I think the plugs should be good to 100k (need to verify). At the very least you could check them for deposits and verify the gap spacing.
  17. Zed 71

    Cam Help

    ^ Nice! Please post a review.
  18. Zed 71

    Have developed a rough idle. Cause/Fix?

    ^ yeah inspect the MAF wire for any dirt, film, etc. Be careful because the MAF is sensitive. In regards to the throttle body, just see if it is dirty and needs cleaning. Then check all intake piping connections to make sure they are on tight with no leaks. A dirty MAF and sticky throttle...
  19. Zed 71

    Has Anyone tried the new "Vararam Tri-Pow" CAI???

    Search the Performance Section. There are a few posts with reviews.
  20. Zed 71

    Pinging noise... I think

    I know Chevron and Texaco are the same company; however, I am not sure about Shell. FYI, easy things to check are: intake filter and piping, spark plugs, MAF, and throttle body. May be even the O2 sensors and fuel pump/filter (hard to get to so check fuel delivery pressure). Jacob let us...
  21. Zed 71

    Have developed a rough idle. Cause/Fix?

    Since you have been swapping out the intake a few times, have you checked the MAF or throttle body?
  22. Zed 71

    Pinging noise... I think

    Andy, IMO good gas is the stuff from Chevron or Shell. I have never had a problem with my sports coupe (which is really picky), and it has good additives for keeping injectors and cylinder walls relatively clean. Edgar, since you are completely stock and under warrenty (assuming you are less...
  23. Zed 71

    Pinging noise... I think

    Pre-detonation can occur at any rpm range (even idling, severe case); however, it is mostly observed after modifications/issues affecting the A/F ratio, timing, etc. Your BB tune may be too agressive for your conditions (perhaps grade of gas), and Justin can dial it back a bit. I would log a...
  24. Zed 71

    Pinging noise... I think

    There are a few factors (A/F ratio, spark plug gaps, MAF, etc.) that can affect pre-detontation even though 91 octane is being used. I find that cheap gas (even though it is rated at 91 octane) does not perform well in my sports coupe. Even if it seems to work well initially, long term use may...
  25. Zed 71

    07 Denali 6.2 Engine Noise

    Has all the maintenanc been done like changing all the differential and tranny fluids?

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